Examlex
Discuss the use of amphetamines as performance enhancers in major league baseball and the ways in which some players have attempted to circumvent the amphetamine ban.
Gut Wall
The lining of the gastrointestinal tract, characterized by layers of tissue that facilitate digestion and absorption of nutrients.
Flame Cells
Collecting cells that have cilia; part of the osmoregulatory system of flatworms.
Protonephridia
Protonephridia are excretory structures found in some invertebrates, functioning in osmoregulation and waste removal.
Tubules
Small tube-like structures in organisms, often found in organs such as kidneys, where they play a role in the transport and processing of bodily fluids.
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